GLSL Double Precision Angle, Trig and Exponential

问题:

In GLSL there's rudimentary support for double precision variables and operations which can be found here. However they also mention "Double-precision versions of angle, trigonometry, and exponential functions are not supported.".

Is there a simple workaround for this, or do I have to write my own functions from scratch?

回答1:

this link seem's to be the best answer

So yes, you'll need to make your own implementation for those functions.

glibc source may be your friend.